Reaction mechanisms in massive nuclei collisions and perspectives for synthesis of heavier superheavy elements  

作　　者：GIARDINA G NASIROV A K MANDAGLIO G CURCIARELLO F De LEO V FAZIO G ROMANIUK M 

机构地区：[1]Dipartimento di Fisica e di Scienze della Terra dell'Università di Messina [2]Istituto Nazionale di Fisica Nucleare,Sezione di Catania [3]Joint Institute for Nuclear Research [4]Institute of Nuclear Physics [5]Centro Siciliano di Fisica Nucleare e Struttura della Materia,Catania 95125,Italy

出　　处：《Nuclear Science and Techniques》2013年第5期98-106,共9页核技术（英文）

摘　　要：We discuss a hardship in synthesis of heaviest super heavy elements in massive nuclei reactions due to the hindrance to complete fusion of reacting nuclei caused on the onset of quasifission process which strongly competes with complete fusion and due to the strong increase of fission yields along the de-excitation cascade of the compound nucleus in comparison with the evaporation residue formation.The hindrance to formation of compound nucleus and evaporation residue is determined by the characteristic of the entrance channel.We discuss a hardship in synthesis of heaviest super heavy elements in massive nuclei reactions due to the hindrance to complete fusion of reacting nuclei caused on the onset of quasifission process which strongly competes with complete fusion and due to the strong increase of fission yields along the de-excitation cascade of the compound nucleus in comparison with the evaporation residue formation. The hindrance to formation of compound nucleus and evaporation residue is determined by the characteristic of the entrance channel.

关 键 词：超重元素 反应机制 合成 碰撞 聚变反应 残余物 复合核 核反应 

分 类 号：O571.4[理学—粒子物理与原子核物理]